Epiphytes without distinct rhizome. Stems tufted, green, fleshy, slender cylindrical, 10-20 cm long, 0.5-1 cm in diam., slightly tapering upward. Leaves 2, apical, linear-oblanceolate, 20-28 cm long, 2-3 cm wide, apex acute, sometimes twisted near base. Peduncle and rachis ca. 20 cm long, compressed and winged near base; bracts lanceolate, 6-8 mm long; pedicel and ovary 6-7 mm long. Flowers numerous, sensely arranged, pale green, widely spreading, not resupinate; dorsal sepal oblong, 3 mm long, 1 mm wide, obtuse at apex; lateral sepals obliquely oblong, 2.6-3 mm long, 1 mm wide, acute at apex; petals linear, 2.5 mm long, 0.3 mm wide; lip ovate, 2.5 mm long, 1.5 mm wide, nearly unlobed, base with erect thick margins, curved downward from middle, apex obtuse, nearly entire; disc without obvious callus at base; column 2 mm long, arcuate, without distinct wing at apex, slightly dilated at base; anther nearly orbicular; pollinia obliquely ovoid, ca. 0.4 mm long. Capsules ovoid, 5 mm long, pedicel 3 mm long. Seeds fusiform, 0.2 mm long.

TAIPEI: Chugishan, Su & Chen 7204, 7418. TAOYUEN: Chiaopanshan, Sasaki s .n. Oct 1917. KAOHSIUNG: Dona, Su et al. 7532, 7540; Shanping, Kuoh 4078.

Widespread in Southeast Asia from southern China, Indochina, India, the Himalaya, the Philippines to Malaya and Indonesia. Taiwan, broadleaved forests, 500-1,500 m.